8.8
High
CVE-2026-87697 Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network
Description
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| .NET 10.0 10.0 | 10.0.0 → < 10.0.13 | 10.0.13 |
| .NET 11.0 11.0 | earliest → < 11.0.0-rc.2 | 11.0.0-rc.2 |
| .NET 8.0 8.0 | 8.0.0 → < 8.0.32 | 8.0.32 |
| .NET 9.0 9.0 | 9.0.0 → < 9.0.21 | 9.0.21 |
| Microsoft Visual Studio 2022 version 17.14 17.14 | 17.14.0 → < 17.14.42 | 17.14.42 |
| Microsoft Visual Studio 2026 version 18.10 18.10 | 18.10.0 → < 18.10.4 | 18.10.4 |
| .NET 10.0 runtime 10.0 | 10.0.0 → < 10.0.13 | 10.0.13 |
| .NET 11.0 runtime 11.0 | earliest → < 11.0.0-rc.2 | 11.0.0-rc.2 |
| .NET 8.0 runtime 8.0 | 8.0.0 → < 8.0.32 | 8.0.32 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| .NET 9.0 runtime 9.0 | 9.0.0 → < 9.0.21 | 9.0.21 |
References
- .NET Remote Code Execution Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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